This standard specifies the solvent desorption gas chromatography method for determination of methanol concentration in the air at workplaces. This standard is applicable to the determination of methanol concentration in the air in workplaces.
WS/T 143-1999 history
1999WS/T 143-1999 Workplace air.Determination of methanol.Solvent desorption gas chromatographic method
WS/T 143-1999 Workplace air.Determination of methanol.Solvent desorption gas chromatographic method was changed to GBZ/T 160.48-2004 Methods for determination of alcohols in the air of workplace.